[FLINK-20957] StreamTaskTest.testProcessWithUnAvailableOutput unstable

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.13.0
• Fix Version/s: 1.13.0
• Component/s: Runtime / Task
• Labels: pull-request-available test-stability
• Assignee: Piotr Nowojski
• Reporter: Till Rohrmann
• Created: 13/Jan/21 09:35
• Updated: 09/Feb/21 08:31
• Resolved: 09/Feb/21 08:31

Description

The StreamTaskTest.testProcessWithUnAvailableOutput fails on AZP.

[ERROR] testProcessWithUnAvailableOutput(org.apache.flink.streaming.runtime.tasks.StreamTaskTest)  Time elapsed: 0.145 s  <<< FAILURE!
java.lang.AssertionError: 

Expected: a value equal to or greater than <42L>
     but: <41L> was less than <42L>
	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
	at org.junit.Assert.assertThat(Assert.java:956)
	at org.junit.Assert.assertThat(Assert.java:923)
	at org.apache.flink.streaming.runtime.tasks.StreamTaskTest.testProcessWithUnAvailableOutput(StreamTaskTest.java:1333)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:298)
	at org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:292)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.lang.Thread.run(Thread.java:748)

cc pnowojski

Issue Links

• links to: GitHub Pull Request #14898